{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x44976adc7b8bf5db6d57b7ca4e7b90e4423ea70b247ba04f369be5dc32ea9e13",
    "signature": "0xe9e48a526fa70fc1aa293cdde5763da9f7968c25a47c8817fb522f0efb3732c33b22a4e900a5aeffd0d693922c605331922f992d55e7f70beaef78c0a94e62de1b",
    "signer": "0xE34C6aD14cf376057fec69EeDE5A2D7B618ae6cF",
    "userId": "791844404"
  }
}